Rendering taking too long. Is there a way to improve it?
There are several ways to speed up render times.


Enable auto tile addon to set tile size correctly.


User preferences => Addons => Enable Render: Auto Tile Size => Save Settings


By utilizing denoising you should be able to decrease render samples.
Scene tab => Check denoising box
Bake your materials. Its too complex to explain here, so check out this tutorial.